Video: Five UFC 170 storylines, including Rousey's record 56-day turnaround

Ahead of Saturday’s UFC 170 event, check out the five main storylines from the pay-per-view card.

MMAjunkie’s John Morgan and Mike Bohn count down the list, which includes headliner and UFC women’s bantamweight champion Ronda Rousey’s (8-0 MMA, 2-0 UFC) 56-day turnaround (which will tie the record for a UFC titleholder) as she meets Sara McMann (7-0 MMA, 1-0 UFC) in the UFC’s first all-Olympic-medalist main event.